Analog Devices Inc./Maxim Integrated

The ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447are micropower, 4-channel digital isolators based on the Analog Devices, Inc.,iCoupler®technology. Combining high speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to the alternatives, such as optocoupler devices. As shown in Figure 3 in the data sheet, in standard operating mode, when ENx= 0 (internal refresh enabled), the current per channel is less than 10 μA. When ENx= 1 (internal refresh disabled), the current per channel drops to less than 1 μA.The ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 family of quad 2.5 kV digital isolation devices are packaged in a small 16-lead QSOP and 20-lead SSOP, freeing almost 70% of board space compared to isolators packages in wide body SOIC packages.The devices withstand high isolation voltages and meet regulatory requirements, such as UL and CSA standards. In addition to the space savings, the ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 operate with supplies as low as 2.25 V.Despite the low power consumption, all models of the ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 provide low, pulse width distortion at <8 ns. In addition, every model has an input glitch filter to protect against extraneous noise disturbances.APPLICATIONSGeneral-purpose, low power multichannel isolation1 MHz, low power peripheral interface (SPI)4 mA to 20 mA loop process controls

TheADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447are micropower, 4-channel digital isolators based on the Analog Devices, Inc.,iCoupler®technology. Combining high speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies, these isolation components provide outstanding performance characteristics superior to the alternatives, such as optocoupler devices. As shown in Figure 3 in the data sheet, in standard operating mode, when ENx= 0 (internal refresh enabled), the current per channel is less than 10 μA. When ENx= 1 (internal refresh disabled), the current per channel drops to less than 1 μA.The ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 family of quad 2.5 kV digital isolation devices are packaged in a small 16-lead QSOP and 20-lead SSOP, freeing almost 70% of board space compared to isolators packages in wide body SOIC packages.The devices withstand high isolation voltages and meet regulatory requirements, such as UL and CSA standards. In addition to the space savings, the ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 operate with supplies as low as 2.25 V.Despite the low power consumption, all models of the ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 provide low, pulse width distortion at <8 ns. In addition, every model has an input glitch filter to protect against extraneous noise disturbances.APPLICATIONSGeneral-purpose, low power multichannel isolation1 MHz, low power peripheral interface (SPI)4 mA to 20 mA loop process controls

The ADuM1510 is a unidirectional, 5-channel isolator based on the Analog Devices, Inc.,iCoupler®technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.By avoiding the use of LEDs and photodiodes,iCoupler devices eliminate the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simpleiCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated withiCoupler products. In addition,iCoupler devices run at one-tenth to one-sixth the power consumption of optocouplers at comparable signal data rates.The ADuM1510 isolator provides five independent isolation channels supporting data rates up to 10 Mbps. The ADuM1510 operates with the supply voltage of either side ranging from 4.5 V to 5.5 V. Unlike other optocoupler alternatives, the ADuM1510 isolator has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.APPLICATIONSGeneral-purpose, unidirectional, multichannel isolation

The ADuM2200 /ADuM2201are 2-channel digital isolators based on Analog Devices, Inc.,iCoupler®technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics that are superior to alternatives such as optocoupler devices.By avoiding the use of LEDs and photodiodes,iCoupler devices remove the design difficulties commonly associated with optocouplers. Typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simpleiCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with theseiCoupler products. Furthermore,iCoupler devices consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.The ADuM2200 / ADuM2201 isolators provide two independent isolation channels in two channel configurations with data rates up to 10 Mbps (see the Ordering Guide). Both parts operate with the supply voltage on either side ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems, as well as enabling voltage translation functionality across the isolation barrier. The ADuM2200 / ADuM2201 isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.Similar to theADuM3200/ADuM3201isolators, the ADuM2200 / ADuM2201 isolators contain various circuit and layout enhancements that provide increased capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge). The precise capability in these tests for either the ADuM3200 / ADuM3201 or ADuM2200 / ADuM2201 products is strongly determined by the design and layout of the user’s board or module. For more information, see theAN-793 Application Note,ESD/Latch-Up Considerations withiCoupler Isolation Products.APPLICATIONSGeneral-purpose, high voltage, multichannel isolationMedical equipmentPower suppliesRS-232/RS-422/RS-485 transceiver isolationHybrid electric vehicles, battery monitors, and motor drives

The ADuM2210 /ADuM22111are 2-channel digital isolators based on Analog Devices, Inc.,iCoupler®technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics that are superior to alternatives such as optocoupler devices.By avoiding the use of LEDs and photodiodes,iCoupler devices remove the design difficulties commonly associated with optocouplers.Typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simpleiCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with theseiCoupler products. Furthermore,iCoupler devices run at one-tenth to one-sixth the power of optocouplers at comparable signal data rates.The ADuM2210 / ADuM2211 isolators provide two independent isolation channels in a variety of channel configurations and data rates. They operate with the supply voltage of either side ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation functionality across the isolation barrier. The ADuM2210W and ADuM2211W are automotive grade versions.Similar to the ADuM3200 / ADuM3201 isolators, the ADuM2210 / ADuM2211 isolators contain various circuit and layout enhancements to provide increased capability relative to system-level IEC 61000-4-x testing (ESD, burst, and surge). The precise capability in these tests for either the ADuM3200 / ADuM3201 or ADuM2210 / ADuM2211 products is strongly determined by the design and layout of the user’s board or module. For more information, see theAN-793 Application Note, ESD/Latch-Up Considerations withiCoupler Isolation Products.APPLICATIONSGeneral-purpose, high voltage, multichannel isolationMedical equipmentPower suppliesRS-232/RS-422/RS-485 transceiver isolationHybrid electric vehicles, battery monitors, and motor drives